Update Greentea WiFi tests

Use similar network interface configuration as used in netsocket tests
Improve test coverage

TESTS/network/wifi/get_interface.cpp

@@ -15,36 +15,12 @@
  * limitations under the License.
  */
 
+#ifndef MBED_CONF_APP_OBJECT_CONSTRUCTION
+    #error [NOT_SUPPORTED] No network interface found for this target.
+#endif
+
 #include "mbed.h"
-
+#include MBED_CONF_APP_HEADER_FILE
-// Pick the correct driver based on mbed_app.json
-#define INTERNAL            1
-#define WIFI_ESP8266        2
-#define X_NUCLEO_IDW0XX1    3
-
-#if MBED_CONF_APP_WIFI_DRIVER == INTERNAL
-
-#if TARGET_UBLOX_EVK_ODIN_W2
-#include "OdinWiFiInterface.h"
-#define DRIVER OdinWiFiInterface
-
-#elif TARGET_REALTEK_RTL8195AM
-#include "RTWInterface.h"
-#define DRIVER RTWInterface
-#else
-#error [NOT_SUPPORTED] Unsupported Wifi driver
-#endif
-
-#elif MBED_CONF_APP_WIFI_DRIVER == WIFI_ESP8266
-#include "ESP8266Interface.h"
-#define DRIVER ESP8266Interface
-
-#elif MBED_CONF_APP_WIFI_DRIVER == X_NUCLEO_IDW0XX1
-#include "SpwfSAInterface.h"
-#define DRIVER SpwfSAInterface
-#else
-#error [NOT_SUPPORTED] Unsupported Wifi driver
-#endif
 
 WiFiInterface *get_interface()
 {
@@ -55,10 +31,7 @@ WiFiInterface *get_interface()
         return interface;
     }
 
-#if MBED_CONF_APP_WIFI_DRIVER == INTERNAL
+    interface = MBED_CONF_APP_OBJECT_CONSTRUCTION;
-    interface = new DRIVER();
+
-#else
-    interface = new DRIVER(MBED_CONF_APP_WIFI_TX, MBED_CONF_APP_WIFI_RX);
-#endif
     return interface;
 }

TESTS/network/wifi/main.cpp

@@ -15,6 +15,10 @@
  * limitations under the License.
  */
 
+#ifndef MBED_CONF_APP_OBJECT_CONSTRUCTION
+    #error [NOT_SUPPORTED] No network interface found for this target.
+#endif
+
 #include "mbed.h"
 #include "greentea-client/test_env.h"
 #include "unity.h"
@@ -26,11 +30,8 @@
 #if !defined(MBED_CONF_APP_AP_MAC_SECURE)      || \
     !defined(MBED_CONF_APP_MAX_SCAN_SIZE)      || \
     !defined(MBED_CONF_APP_WIFI_CH_SECURE)     || \
-    !defined(MBED_CONF_APP_WIFI_DRIVER)        || \
     !defined(MBED_CONF_APP_WIFI_PASSWORD)      || \
-    !defined(MBED_CONF_APP_WIFI_RX)            || \
     !defined(MBED_CONF_APP_WIFI_SECURE_SSID)   || \
-    !defined(MBED_CONF_APP_WIFI_TX)            || \
     !defined MBED_CONF_APP_WIFI_SECURE_PROTOCOL
 #error [NOT_SUPPORTED] Requires parameters from mbed_app.json (for secure connections)
 #endif
@@ -40,10 +41,7 @@
 #if !defined(MBED_CONF_APP_AP_MAC_UNSECURE)    || \
     !defined(MBED_CONF_APP_MAX_SCAN_SIZE)      || \
     !defined(MBED_CONF_APP_WIFI_CH_UNSECURE)   || \
-    !defined(MBED_CONF_APP_WIFI_DRIVER)        || \
     !defined(MBED_CONF_APP_WIFI_PASSWORD)      || \
-    !defined(MBED_CONF_APP_WIFI_RX)            || \
-    !defined(MBED_CONF_APP_WIFI_TX)            || \
     !defined(MBED_CONF_APP_WIFI_UNSECURE_SSID)
 #error [NOT_SUPPORTED] Requires parameters from mbed_app.json (for unsecure connections)
 #endif

TESTS/network/wifi/template_mbed_app.txt

@@ -24,17 +24,12 @@
             "help": "Channel number of unsecure SSID",
             "value": 2
         },
-        "wifi-driver": {
+        "header-file": {
-            "help": "Wifi driver to use, valid values are INTERNAL, WIFI_ESP8266 and X_NUCLEO_IDW0XX1",
+            "help" : "String for including your driver header file",
-            "value": "INTERNAL"
+            "value" : "\"WIFI_INTERFACE.h\""
         },
-        "wifi-tx": {
+        "object-construction" : {
-            "help": "TX pin for serial connection to external device",
+            "value" : "new WIFI_INTERFACE()"
-            "value": "D1"
-        },
-        "wifi-rx": {
-            "help": "RX pin for serial connection to external device",
-            "value": "D0"
         },
         "ap-mac-secure": {
             "help": "BSSID of secure AP in form of AA:BB:CC:DD:EE:FF",

TESTS/network/wifi/wifi_connect_params_null.cpp

@@ -27,4 +27,5 @@ void wifi_connect_params_null(void)
 {
     WiFiInterface *wifi = get_interface();
     TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_PARAMETER, wifi->connect(NULL, NULL));
+    TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_PARAMETER, wifi->connect("", ""));
 }

TESTS/network/wifi/wifi_connect_params_valid_unsecure.cpp

@@ -29,6 +29,9 @@ void wifi_connect_params_valid_unsecure(void)
 {
     WiFiInterface *wifi = get_interface();
     TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_OK, wifi->connect(MBED_CONF_APP_WIFI_UNSECURE_SSID, NULL));
+    TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_OK, wifi->disconnect());
+    TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_OK, wifi->connect(MBED_CONF_APP_WIFI_UNSECURE_SSID, ""));
+    TEST_ASSERT_EQUAL_INT(NSAPI_ERROR_OK, wifi->disconnect());
 }
 
 #endif // defined(MBED_CONF_APP_WIFI_UNSECURE_SSID)

TESTS/network/wifi/wifi_set_channel.cpp

@@ -51,7 +51,7 @@ void wifi_set_channel(void)
 
     if (is_2Ghz) {
         error = wifi->set_channel(0);
-        TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
+        TEST_ASSERT(error == NSAPI_ERROR_OK);
         error = wifi->set_channel(1);
         TEST_ASSERT(error == NSAPI_ERROR_OK);
         error = wifi->set_channel(13);

TESTS/network/wifi/wifi_set_credential.cpp

@@ -31,15 +31,27 @@ void wifi_set_credential(void)
     error = iface->set_credentials(NULL, NULL, NSAPI_SECURITY_NONE);
     TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
 
+    error = iface->set_credentials("", "", NSAPI_SECURITY_NONE);
+    TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
+
     error = iface->set_credentials("OK", NULL, NSAPI_SECURITY_NONE);
     TEST_ASSERT(error == NSAPI_ERROR_OK);
 
+    error = iface->set_credentials("OK", "", NSAPI_SECURITY_NONE);
+    TEST_ASSERT(error == NSAPI_ERROR_OK);
+
     error = iface->set_credentials("OK", NULL, NSAPI_SECURITY_WEP);
     TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
 
+    error = iface->set_credentials("OK", "", NSAPI_SECURITY_WEP);
+    TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
+
     error = iface->set_credentials("OK", NULL, NSAPI_SECURITY_WPA_WPA2);
     TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
 
+    error = iface->set_credentials("OK", "", NSAPI_SECURITY_WPA_WPA2);
+    TEST_ASSERT(error == NSAPI_ERROR_PARAMETER);
+
     error = iface->set_credentials("OK", NULL, NSAPI_SECURITY_NONE);
     TEST_ASSERT(error == NSAPI_ERROR_OK);